Hi, it looks like you're in The Netherlands!
You do know we have a Dutch website, right?
You do know we have a Dutch website, right?
At Royal Coster Diamonds, we have the most prestigious watch brands. Discover a world of Haute Horlogerie.
Looking for advice when buying a piece of diamond jewelry? Our experienced diamond consultants are standing by. Contact us now or schedule an appointment.
If you are looking for a diamond ring at an attractive price, this is the page for you. These rings have discounts up to 50% since we will not get them back in stock anymore. Also take a look at our Last Chance engagement rings.
Diamond Engagement Rings
#1240872
€2858
€3572
-20%Diamond Rings
#1020483
€913
€1825
-50%Diamond Rings
#1021205
€1249
€2498
-50%Diamond Engagement Rings
This You & Me ring represents Valentine’s Day, the day of lovers. It has 14 small brilliant-cut diamonds and 2 Royal 201 cut diamonds on both ends: 14-2. The You & Me design represents the two of you. This is a last chance product which means this product will not come back in stock anymore. It has 20% discount.
€2858
€3572
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The Perfect Prime is a semi-alliance ring with 11 diamonds. The 11 diamonds are all brilliant cuts. They have a combined weight of 0.33 carat, a Wesselton color and an SI clarity. This ring is available in 18 karat rose gold, 18 karat white gold and 18 karat yellow gold. This is a last chance product which means this product will not come back in stock anymore. It has 50% discount.
€913
€1825
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This ring features 8 diamonds that are separated by small strokes of gold. That’s why this ring carries the fitting name “The Bars of Gold”. This is a last chance product which means this product will not come back in stock anymore. It has 50% discount.
€1249
€2498
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1041460
€869
€1086
-20%Diamond Rings
#1041481
€1876
€2345
-20%Diamond Rings
#1231482
€3322
€4152
-20%Diamond Rings
This 18K ring is adorned with three rows of diamonds in channel setting. The central trail is formed by 31 baguette cut diamonds and it is flanked by 44 brilliant cut diamonds. This is a last chance product which means it will not get back in stock.
€869
€1086
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
With its sleek look, this 18K white gold alliance ring meets the modern-day preference for clean lines and durable elegance. The channel setting holds 7 brilliant cut diamonds with a total weight of 0.85 carat. This is a last chance product which means it will not get back in stock.
€1876
€2345
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The robust ring band with polished finish highlights the brilliant cut diamond weighing 0.50 carat. Worn either as a symbol of commitment to the loved one or to express one’s fashion sense and personality, this gentleman’s solitaire definitely makes a statement. This 18 K rose gold ring is a last chance product which means it will not get back in stock.
€3322
€4152
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1011983
€757
€1514
-50%Diamond Rings
#1011977
€1048
€2095
-50%Diamond Rings
#1021223
€1004
€2006
-50%Diamond Rings
This beautiful wedding ring is a special one. This ring has three diamonds in the strap instead of on top of the strap. This makes the ring a very unique piece of jewelry. This is a “last chance” product which means that this product will not come back in stock anymore. It has 50% discount.
€757
€1514
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This beautiful wedding ring is a special one. This ring has three diamonds in the strap instead of on top of the strap. This makes the ring a very unique piece of jewelry. This is a “last chance” product which means that this product will not come back in stock anymore. It has 50% discount.
€1048
€2095
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The 14K gold wedding band features a trio of princess cut diamonds evoking the present, the future and the past. The two-tone gold, contrasting finish and rounded rims for a comfort-fit add a fashionable and contemporary feel to the ring. This is a last chance product which means it will not get back in stock.
€1004
€2006
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1041525
€1511
€1888
-20%Diamond Rings
#1021044
€3114
€6228
-50%Diamond Rings
#1021197
€1161
€2322
-50%Diamond Rings
This 18K white gold alliance ring showcases 9 brilliant cut diamonds in bezel setting alternating in size, with a total of 0.43 carat. This is a last chance product which means it will not get back in stock.
€1511
€1888
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K white gold alliance ring showcases 7 brilliant cut diamonds totaling 0.96 carat. With its distinguished raised profile, this ring is a statement all on its own, but it also makes an exquisite layering companion to other rings. This is a last chance product which means it will not get back in stock.
€3114
€6228
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This alliance ring adorns the finger with 9 brilliant cut diamonds in bezel setting, totaling 0.42 carat. It can be worn alone or as a wedding band next to the engagement ring. This 18K gold ring has 50% discount.
€1161
€2322
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1082148
€896
€1119
-20%Diamond Rings
#1030688
€1032
€1290
-20%Diamond Rings
#1020483
€913
€1825
-50%Diamond Rings
This semi alliance diamond ring contains 4 sapphires and 3 diamonds. It is a 18 karat white gold ring and appears very subtle. This is a last chance product which means we will not reorder it.
€896
€1119
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K rose gold ring has a playful design, presenting a slightly curved band and a joyful combination of rubies and diamonds. The ring has 20% discount and it will not get back in stock.
€1032
€1290
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This semi alliance diamond ring is very elegant and subtle. It contains 11 diamonds. This is a last chance product which means we will not get it in stock anymore
€913
€1825
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1021027
€1567
€3133
-50%Diamond Rings
#1021028
€2461
€4921
-50%Diamond Rings
#1031007
€2212
€2764
-20%Diamond Rings
This is a very special ring. Brown diamonds are rare, however this ring contains more than 60 of them. That is why it is called The Chocolate Paradise. This ring is the perfect classy addition to every outfit. This product is a “last chance” product which means it will not come back in stock anymore. It has 50% discount.
€1567
€3133
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This rose gold diamond ring has a unique design. It is very valuable and consists of 61 pink diamonds. This is a last chance product which means that we will not restock it.
€2461
€4921
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The Double Trouble ring is a fantasy ring. The two straps intersect each other in a beautiful way. The combination of silver and gold makes the ring a real eye-catcher. This ring is a “last chance” product which means this product will not come back in stock anymore. It has 20% discount.
€2212
€2764
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1030638
€3243
€4053
-20%Diamond Rings
#1021245
€1898
€2372
-20%Diamond Rings
#1041208
€2047
€2558
-20%Diamond Rings
This double alliance ring provides a lot of sparkle. It is made of 18 karat rose gold and contains 76 diamonds in total. This is a last chance product which means that we will not restock it.
€3243
€4053
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K gold band offers a spectacle of sparkle with 4 parallel strings of diamonds. The central ones, displaying 42 princess cut diamonds, are flanked by two rows with 44 brilliant cut diamonds. This ring has 20% discount and it will not get back in stock.
€1898
€2372
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The Golden Touch is a beautiful wedding ring. This 18 karat yellow gold ring contains more than 100 diamonds. Which makes the ring a real eye-catcher. This is a “last chance” product which means that this product will not come back in store anymore. It has 20% discount.
€2047
€2558
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1041623
€1812
€2265
-20%Diamond Rings
#1041579
€1436
€1794
-20%Diamond Rings
#1041370
€2927
€3902
-25%Diamond Rings
The Encounter is very special ring. The ring has 2 straps that encounter on the top of the ring. This beautiful 2 colored ring contains 38 brilliant cut diamonds. This product is a “last chance” product which means it will not come back in stock anymore. It has 20% discount.
€1812
€2265
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The Sparkling Twister is a very special ring. This 18 karat white gold and yellow gold ring sparkles because it contains 42 brilliant cut diamonds. This ring is a “last chance” product which means that this product will not come back in stock anymore. It has 20% discount.
€1436
€1794
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
A multi-layer ring in two-tone gold featuring in its center two crossing strands set with 43 brilliant cut diamonds, a symbol of two life paths that mark one another. This is a last chance product which means it will not get back in stock.
€2927
€3902
-25%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1082633
€4985
€6231
-20%Diamond Rings
#1021247
€4197
€8393
-50%Diamond Rings
#1031162
€4992
€6240
-20%Diamond Rings
The Diamond Path is a special ring. This ring contains two different diamond cuts, that make the ring look like a path. This ring is a “last chance” product which means that this product will not come back in stock anymore. It has 20% discount.
€4985
€6231
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This sparkling ring contains three rows of diamonds. It contains 107 diamonds in total. This is a last chance product which means that we will not restock it.
€4197
€8393
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
The immensity of love and the bursts of passion are rendered in this fancy ring with a wave design. The ring displays 7 oval-shaped rubies nested between undulating stretches of gold paved with 116 brilliant cut diamonds. This is a last chance product which means it will not get back in stock.
€4992
€6240
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1021240
€7025
€8781
-20%Diamond Rings
#1011704
€2127
€4254
-50%Diamond Rings
#1021030
€6181
€12362
-50%Diamond Rings
This 18K yellow gold ring displaying 5 rows of bezel-set brilliant cut diamonds is designed to grab the attention. The layers of gold hold 39 diamonds with a total weight of 2.30 carat. This ring has 20% discount and it will not get back in stock.
€7025
€8781
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K three-tone gold ring is set with 141 pave brilliant cut diamonds, totaling 1.27 carat. The interlaced bands in white, yellow and rose gold symbolize the three pillars of a relationship: friendship, love and fidelity. This ring has 50% discount and it will not come back in stock.
€2127
€4254
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K duo-tone gold ring offers layers over layers of splendor. The crossover bands hold 287 brilliant cut diamonds. This ring has 50% discount and it will not come back in stock.
€6181
€12362
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1030874
€1854
€2317
-20%Diamond Rings
#1041101
€1918
€2398
-20%Diamond Rings
#1082120
€4142
€8284
-50%Diamond Rings
This fluid and organic design displays brilliant cut diamonds set among interwoven bands of gold, evoking flower buds on the climbing vine. The 18K white gold ring features a total of 109 diamonds. This is a last chance product which means it will not get back in stock.
€1854
€2317
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
A diamond ring with 15 diamonds. These diamonds create a playful illusion of three intertwined flowers. This is a last chance product which means it will not get back in stock. Available in 18 karat white gold and 18 karat yellow gold.
€1918
€2398
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
Fashioned in a sophisticated signet style, this 18K white gold ring is an expression of feminine emancipation. The seal-like center displays an intricate cutout detail and 259 brilliant cut diamonds. This ring has 50% discount and it does not come back in stock.
€4142
€8284
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1020907
€3459
€6917
-50%Diamond Rings
#1041662
€3692
€4614
-20%Diamond Rings
#1041666
€3417
€4271
-20%Diamond Rings
A delicate twist splits the diamond adorned band in two halves mirroring each other in two tone gold. The ring is set in 18 K white and yellow gold and features 351 brilliant cut diamonds totaling 2.11 carat. This is a last chance product which means it will not get back in stock.
€3459
€6917
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K white gold ring features an impressive amount of 212 scintillating white brilliant cut pave set diamonds. In the heart of it, another 50 contrasting black diamonds form an imaginative crest of feathers, as a symbol of pride. This is a last chance product which means it will not get back in stock.
€3692
€4614
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This color-contrast ring oozes sophistication and fashion awareness. 284 black brilliant cut diamonds form a stunning background for a series of paisley motifs set with 77 white brilliant cut diamonds. This 18K white gold ring has 20% discount and it will not come back in stock.
€3417
€4271
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1020993
€3340
€6680
-50%Diamond Rings
#1020908
€4056
€8112
-50%Diamond Rings
#1001400
€3590
€7179
-50%Diamond Rings
This diamond ring is very special, it contains two diamond rows that cross on top of the ring. This is a last chance product which means this product will not come back in stock anymore. It has 50% discount.
€3340
€6680
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This stylized flower ring, featuring black and white diamonds, will be the talk of the party. As the night unfolds and the bright stars appear, the flower unfurls its petals paved with 102 black diamonds and bordered with 54 sparkling white diamonds. This 18K white gold ring has 50% discount and it will not get back in stock.
€4056
€8112
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
Shaped as a series of concentric circles, this 18K white gold ring is sure to hypnotize with the dazzling contrast between the 73 white brilliant cut diamonds and the 48 black diamonds. This ring has 50% discount and it will not come back in stock.
€3590
€7179
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1020923
€4955
€9909
-50%Diamond Rings
#1011719
€2282
€4564
-50%Diamond Rings
#1021050
€1782
€3562
-50%Diamond Rings
This cocktail ring is an expression of feminine emancipation and individuality. A signature staple of the roaring ’20s in America, the cocktail ring has seen a come back these past years, bringing the wow factor to any event. Shaped as a dome with alternating lines of brown and white brilliant cut diamonds, this 18K rose gold ring showcases a total of 347 stones. The ring has 50% discount and it will not come back in stock.
€4955
€9909
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This mesmerizing swirl displays 153 brilliant cut diamonds with contrasting color. The 18K white gold ring is designed to dazzle with its twist and turns, just like a graceful pirouette. This ring has 50% discount and it will not get back in stock.
€2282
€4564
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18 K rose gold ring features a 9.50 carat sunstone in a fine halo of brilliant cut diamonds. The sunstone is associated with originality, inspiration and good luck, and it is sure to induce a sunny disposition. This is a last chance product which means it will not get back in stock.
€1782
€3562
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1021033
€3265
€6529
-50%Diamond Rings
#1020910
€1924
€3847
-50%Diamond Rings
#1020911
€2520
€5039
-50%Diamond Rings
Raise the glass and show off the sparkler! This 18K gold cocktail ring presents a multi-layered band featuring 4 half-spheres set with 76 brilliant cut diamonds. The ring is available in rose and white gold and has 50% discount.
€3265
€6529
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
Think of the colorful sunset in the African savanna, the patterns on animal furs and the glitter in the predators’ eyes. The two tones of gold are artfully delimited by strings coated with black rhodium, a wild fantasy backdrop for 143 brilliant cut diamonds. This 18K gold ring has 50% discount and will not get back in stock.
€1924
€3847
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
Think of the colorful sunset in the African savanna, the patterns on animal furs and the glitter in the predators’ eyes. The two tones of gold are artfully delimited by strings coated with black rhodium, a wild fantasy backdrop for 142 brilliant cut diamonds. This 18K gold ring has 50% discount and will not get back in stock.
€2520
€5039
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
#1021026
€4536
€9071
-50%Diamond Rings
#1031073
€5052
€6315
-20%Diamond Rings
#1360495
€7488
€9360
-20%Diamond Rings
Raise the glass and show off the sparkler! This 18K gold cocktail ring presents a multi-layered band featuring 3 half-spheres set with 124 brilliant cut diamonds. The ring is available in white and yellow gold and has 50% discount.
€4536
€9071
-50%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
Think of an evening party with the piano playing a crescendo passage. This 18K white gold ring, featuring 237 brilliant cut diamonds, is shaped as imaginative steps that become progressively larger and reach higher with every stone that is added to the overall brilliance. This product has 20% discount and it will not get back in stock.
€5052
€6315
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
Diamond Rings
This 18K white gold ring flaunts a celestial blue topaz of 15.67 carat with a pear shape. The halo and the ring band are adorned with an impressive amount of 184 brilliant cut diamonds, totaling 2,02 carat. This is a last chance product which means it will not get back in stock.
€7488
€9360
-20%VAT incl.
With 20.000 products in stock, we can help you to find the perfect piece. Please tell us your wishes as detailed as possible and a diamond consultant will get in touch with you shortly.
If you are looking for a diamond ring at an attractive price, this is the page for you. These rings have discounts up to 50% since we will not get them back in stock anymore. Also take a look at our Last Chance engagement rings.
